38021211247 has 2 divisors, whose sum is σ = 38021211248. Its totient is φ = 38021211246.

The previous prime is 38021211199. The next prime is 38021211253. The reversal of 38021211247 is 74211212083.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38021211247 - 2⁷ = 38021211119 is a prime.

It is a super-2 number, since 2×38021211247² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38021211257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19010605623 + 19010605624.

It is an arithmetic number, because the mean of its divisors is an integer number (19010605624).

Almost surely, 2^38021211247 is an apocalyptic number.

38021211247 is a deficient number, since it is larger than the sum of its proper divisors (1).

38021211247 is an equidigital number, since it uses as much as digits as its factorization.

38021211247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 38021211247 in words is "thirty-eight billion, twenty-one million, two hundred eleven thousand, two hundred forty-seven".